Pea-thresher.



, I No. 747,099. BATENTED' DEC. 15, 1902:.

R. W. J. STEWART.

PEA THRESHER.

APPLICATION FILED JULY 14, 1902.

'3 SHEETS-SHEET 1..

no MODEL.

m: uonms PETERS co, PHOTO-LUNG. WASHINGTON. a. c.

No. 747.099. PATENTED DEC; 15, 1903.

R. W. J. STEWART.

PEA THRESHER.

APPLICATION FILED JULY 14, 1902. H0 MODEL. 3 SHEETS-SHEET 2.

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l'i ll l ll lil lllllllllllllllllllfllh No.'747,099. PATENTED DEG.15,1903.

R. W. J. STEWART.

PEA THRESHER.

APPLICATION FILED JULY 14, 1902.

H0 MODEL. 3 SHEETS-SHEET 3.

att oineg a 1w: NORRIS vzrzns co. Wowmmuiwnsnmumm ac i To wZZ whom itmay concern same.

UNi-TEE I STATES Patented member 15, 1903. 7

l Unmet.

RUBEN J. STEWART, OF DALTON, GEORGIA, ASSIGNOR TO JOHN M. SANDERS, onDALTON, GEORGIA.

PEA THRlESH'ER.

SPECIFICATION forming part of Letters Patent No. 747,099, dated December15, 1903.

Application filed zrtl 'ir, 190?.

Be it known thatl, RUBEN W. J. STEWART, a citizen of the United States,residing at Dal-i ton, in the county of Whitefield and State of Georgia,have invented certain new and usef 111 Improvements in Pea-Threshers, ofwhich the following is a specification.

My invention'relates to machines for hulling and'separatingpeas, inwhich the hulling action is performed by a pair of coacting disks andthe separating action by a novel arrangement of a blower, tray, anddischarge-trough.

The invention aims, primarily, to increase the capacity of machines ofthis character and to improve the general efficiency of the same; and tothis end the invention includes a pair of balling-disks, one of which isprovided with a novel construction of feed.-opening.

It further includes the'combination of parts and details ofconstruction, as will be hereinafter described, and particularly pointedout in the claims. 1

In the accompanying drawings, whichillustrate one embodiment of theinvention and a modified arrangement of the hulling-disk, Figure 1 showsthe complete machine in side elevation. Fig. 2 is a sectional view of.the Fig. 3 is a cross-sectional view of the machine. Fig, 4 is a planview ofthe preferred form of the fixed hulling-disk; and Fig. 5 is asimilar View of a modified construction of this disk, together with themovable disk which coacts therewith. Fig. 6 is a detail view.

As before premised, the machine comprises generally hulling means andmeans for separating the hulls from the shelled peas. This entiremechanism is contained and supported in a suitable frame A, comprisingcornerstandards a, supported from suitable basepieces I) and connectedby side and end panels (1. The upper portion of the casing is preferablyconstructed in the formfof a hopper c, and directly below the same andsupported rigidly upon the casingA in any suitable manner is located afixed hulling-disk E, having a feed-opening 6, arranged axially thereof,and from the under face of this disk a'series of rows of pins 6 depend.Arranged directly 'jseliti No. 115.552. (No model.)

below the fixed disk E and coacting therewith is a' revoluble disk F,provided with a series of rows of pins f, corresponding to the pins 6and arranged to work between the same. The disk F is carried by averticallyarranged shaft G, suitably journaled at its lower end in abearing fixed to the .frame A and at its upper end in the end of an arm6 extending radially from the wall of the opening 6, which arm ispreferably also provided with depending pins. The shaft Gr carries abeveled pinion g, which meshes with a corresponding gear 9, fixed to theend of a horizon tally-arranged shaft h,which extends through the sideof the casing A and has secured to the end thereof a drive-wheel I,provided with an operating-handle t'.

The peas fed into the hopper 0 pass through the opening 6 in the disk Einto the space between the latter and the disk F, and as the latter diskis rotated through the medium of the wheel I the pins '6 and f serve tobreak the pea-hulls and release the peas therefrom. By reason of theopening e a large quantity of peas can be constantly fed to and betweenthe disk, thus providing a machine of very large capacity.

The separated peas and hulls pass over the periphery of the disk F andfall into an inclined tray J, located beneath said hullingdisk, which issupported from the sides of the casingA by suitable strapsj. The bottomof the rear portion of this tray is intact, while the front portionthereof is cut away and bridged by a suitable screen l'c, below which apocket K is located. The forward end of said pocket is entirely open andfrom the front edge of the bottom thereof a series of fingers m projectforwardly. A series of coresponding fingers 71. also project forwardlyfrom the tray, substantially in alinement with the screen it.

Directly in advance of the end .of thetray J a novel construction oftrough M, which extends obliquely in relation to'said tray, is located.This trough M is provided with a longitudinally-extending partitionm,which separates the same into two compartments 0 and 0, which are incommunication at the upper end of the trough, as the upper-end of thepartition m terminates short of the .extreme upper end of the trough M.The lower end of the compartment 0 is closed by an end wall 10, whichalso forms the bottom wall of an angularly-extending spout R, whichleads from the lower end of said compartment 0'. At the bottom of thecompartment 0' a suitable spout r is provided.

Supported in the casing A and arranged directly below the tray J asuitable fan or blowerS is located, the fan-shaft s of which is providedwith a pulley t, belted to the wheel I and driven therefrom. Theopposite end of said shaft 8 is provided with a'suitable crank-arm inthe present'instance, a disk 8' and an eccentrically-arranged pin 3serving this purpose, which is connected by a suitable pitman to thelower end of a pivoted rocking-lever t, which is connected to the tray Jand serves to give the same a longitudinal vibratory motion as the shafts rotates. The mouth of the conduit leading from the fan S opens intothe compartment 0 of the trough M at an angle to the partition-wall mand below the pocket of the tray J, the forward end of which projects ashort distance into the said compartment 0. The peahulls having beenbroken to release the peas therefrom by the disks E and F, the separatedparts fall into the tray J, which is given, as before described, aconstant vibratory movement. This shaking of the tray serves to separatethe peas from the bulls, and as said tray is slightly inclineddownwardly toward its front end the peas and hulls deposited thereon aregradually fed toward the front end of the same and discharged therefrom.The mesh of the screen It is of such a size that the peas will passthrough the same and into the pocket K and be discharged therefrom overthe fingers m and into the compart- -ment 0, while the hulls will passover the screen and be discharged from the fingers n. As the hulls reachthe fingers n and pass over the ends of the same they are caught in theblast from the fan S and carried out over the end of the trough M, whilethe peas which have passed over the ends of the fingers m and into thecompartment 0 fall down the same and pass through the discharge-spout a"into a suitable receiving-receptable located beneath the same. If any ofthe smaller peas should be carried up the trough M by the air-blast, theweight of the same will serve to carry them out of the blast of the fanas they reach the upper end of the trough M and they will fall over theupper end of the partition m and into the chamber 0, and passing downthrough the latter they will be discharged through the spout B. into asuitable receptacle arranged beneath the same.

Instead of providing substantially flat hulling-disks, such as areillustrated in Figs. 2

and 3, I may provide a revoluble disk withneath the opening therein withits forward end open also having projecting fingers, a screen across thetop of the pocket, a separating-trough inclined across the front of thetray,anda blast-fan havinga discharge-spout leading to the trough.

2. In a machine of the class described, the combination with a casing,of a stationaryhulling member rigidly carried by the casing and providedwith a central feed-opening, an arm carried by said member and projectedacross the opening therein, a bracket carried by the casing andprojected across the opening in the hulling member and below the same, ashaft journaled in the arm and the bracket, and a rotatable hullingmember carried by the shaft and located between the bracket and thestationary member.

3. In a machine of the class described,hulling mechanism comprising afixed disk having an axial feed-opening and a plurality of rows ofdepending pins,a revoluble disk having a plurality of rows of pinsarranged to work between the pins of the first disk, an arm extendinginwardly from the wall of said feed-opening, and provided with aplurality of depending pins and a shaft carrying the second diskjournaled in said arm, substantially as described.

4:. In a machine of the class described, a casing, hulling mechanismcomprising a fixed and a revoluble disk, a tray located beneath saiddisk, a trough arranged in advance of said tray, a fan supported in thecasing having a discharge-spout communicating with said trough, meansfor driving said fan-shaft during the operation of the hulling mechanism,a disk carried on the end of said fan-shaft having aneccentrically-arranged pin extending therefrom, a rocking leverconnected to said tray, and a pitman connection between said lever andsaid pin, substantially as described.

5. In a machine for hulling peas, upper and lower coacting disks, saidlower disk havinga flat portion provided with a plurality of pins and aplain conical central projection, said upper disk having a radial armextending parallel with the side of said conical projection,substantially as described.

6. In a machine of the class described, upper and lower coacting disks,said lower disk having a conical central portion and a flat sur- Intestimony whereof I aflix my signature,

rounding portion provided with a plurality in presence of two witnesses.of pins, said upper disk having a central feedopening therein, and aradial arm projecting RUBEN STEWART 5 from the wall of said opening withits free end Witnesses:

journaled above the apex of said cone, sub- LESTER OATLETT,

stantially as described. L. H. CRAWFORD.

